Ralf Zimmer
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| 48th Atlantic Open 2016 | 08/26/2016 | 2312 |  United States |
| 54th Baltimore Open 2016 | 01/29/2016 | 2414 | United States |
| US Chess League KO Final 2012 | 11/12/2012 | 2338 | |
| US Amateur Team-ch East | 02/14/2009 | 676 | United States |
Most Played Openings as White
| ECO | Opening | Games |
| E61 | King's Indian defence, 3.Nc3 | 1 games |
| E51 | Nimzo-Indian, 4.e3 e8g8, 5.Nf3 d7d5 | 1 games |
| D08 | Queen's Gambit Declined, Albin counter-gambit | 1 games |
| D12 | Queen's Gambit Declined Slav, 4.e3 Bf5 | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| B22 | Sicilian, Alapin's variation (2.c3) | 2 games |
| C01 | French, exchange variation | 1 games |
| B40 | Sicilian defence | 1 games |
| A20 | English opening | 1 games |
